Not unless there was a Phase IV version, and I don't believe that happened.
Heck, it was a struggle to get permission to do Phase IV on RSTS...
paul
> On Feb 27, 2026, at 7:58 PM, Zane Healy via cctalk <[email protected]>
> wrote:
>
> I don’t believe that DECnet on RT-11 supports Ethernet.
>
> Zane
>
>
>
>> On Feb 27, 2026, at 4:49 PM, Jim Davis via cctalk <[email protected]>
>> wrote:
>>
>> I didn't know the 11/23 had net. We used fat coax and vampire taps on the
>> network capable machines.
>>
>>> On Sat, Feb 21, 2026 at 1:39 PM Ethan Dicks via cctalk <
>>> [email protected]> wrote:
>>>
>>>> On Sat, Feb 21, 2026 at 4:14 PM Paul Koning via cctalk
>>>> <[email protected]> wrote:
>>>> On the other hand, the even more obscure DECnet/8 was found a couple of
>>> years ago. Its main limitation is that it is Phase I, which is not
>>> compatible with any later DECnet. I have some support for it in
>>> DECnet/Python development code.
>>>
>>> Yes. Back in the mid-80s when I was using a PDP-8/a at home every day
>>> (128Kw memory, RL8A/RL01... nice system), I had heard about DECnet/8
>>> but it was hard to track down even then. It was widely
>>> known/understood at the time it was only Phase I, but still, it was
>>> *networking* for a PDP-8!
>>>
>>> I did manage to get RTS-8 working on that machine, with OS/8 in a
>>> process. I never ended up writing any from-scratch stuff for RTS-8
>>> but I did go through the documentation examples and got it working.
>>>
>>> -ethan
>>>
>
